Is a network point to point access without compromising the Router or modem's firewall.

Real time Streaming Protocol is a network protocol that was designed for the use in Entertainment and Video Communication systems to control the video servers. The use was for the establishment and controling media sessions between the two points.

A method of automatically updating a name server in the Domain Name System (DNS), often in Not Real Time, with the active DDNS configuration of its configured host names, addresses or other information. The term is used to describe two different concepts.

Termed as File transfer protocol, it is a network protocol for transfering files from one point to another over the TCP based network, ie: the internet.